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Article Dans Une Revue Biosurface and Biotribology Année : 2017

Dental microwear and controlled food testing on sheep: The TRIDENT project

Résumé

Here, we present a short review of the most recent results that have come out of the TRIDENT project. This project aims to model tooth wear by performing controlled food testing on sheep. This approach offers us the opportunity to test various scientific questions which colleagues, working exclusively on fossil and modern wild species, have been unable to answer. Whereas several experimental studies were done at the scale of food particles, TRIDENT explores these questions at the scale of the living organism chewing thousands of bio-silica phytoliths all embedded in cell-walls, a structural condition that undoubtedly influences the way wear is generated. Our first results concern the effects of different food types, first free of dust and then with dust, thus reproducing natural conditions. After exploring the effects of seeds of different size and hardness, we have also further investigated the unexpected results highlighted over the course of the experimentation. Among them is the relevance of the practice to enlarge sample size by including different facets of the teeth and how this practice affects our results and interpretation on diet reconstruction. Finally we show some preliminary results of an alternative analytic approach to better discriminate between different dental microwear textures.

Domaines

Paléontologie

Dates et versions

hal-02100359 , version 1 (15-04-2019)

Identifiants

Citer

Gildas Merceron, Cécile Blondel, Noël Brunetière, Arthur Francisco, Denis Gautier, et al.. Dental microwear and controlled food testing on sheep: The TRIDENT project. Biosurface and Biotribology, 2017, 3 (4), pp.174-183. ⟨10.1016/j.bsbt.2017.12.005⟩. ⟨hal-02100359⟩
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